Projects per year
Abstract / Description of output
Glassy polymers show "strain hardening": at constant extensional load, their flow first accelerates, then arrests. Recent experiments have found this to be accompanied by a striking and unexplained dip in the segmental relaxation time. Here we explain such behavior by combining a minimal model of flow-induced liquefaction of a glass with a description of the stress carried by strained polymers, creating a nonfactorable interplay between aging and strain-induced rejuvenation. Under constant load, liquefaction of segmental motion permits strong flow that creates polymer-borne stress. This slows the deformation enough for the segmental modes to revitrify, causing strain hardening.
Original language | English |
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Article number | 048301 |
Pages (from-to) | - |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 108 |
Issue number | 4 |
DOIs | |
Publication status | Published - 25 Jan 2012 |
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Dive into the research topics of 'Simple Model for the Deformation-Induced Relaxation of Glassy Polymers'. Together they form a unique fingerprint.Projects
- 2 Finished
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Design Principles for New Soft Materials
Cates, M., Allen, R., Clegg, P., Evans, M., MacPhee, C., Marenduzzo, D. & Poon, W.
7/12/11 → 6/06/17
Project: Research
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Edinbugrh Soft Matter and Statistical Physics Programme Grant Renewal
Cates, M., Poon, W., Ackland, G., Clegg, P., Evans, M., MacPhee, C. & Marenduzzo, D.
1/10/07 → 31/03/12
Project: Research